Skip to main content
SPDG490-N120M10 vs SPDG440-N108M10 12 of 19 identical Swap Change panels

Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG440-N108M10

Sunpro Power SPDG490-N120M10
Sunpro Power
SPDG490-N120M10
490 Wp 22.62 % TOPCon
Open panel page Datasheet PDF
VS
Sunpro Power SPDG440-N108M10
Sunpro Power
SPDG440-N108M10
440 Wp 22.53 % TOPCon
Open panel page Datasheet PDF
The verdict

SPDG490-N120M10 leads on the differences that matter

The largest is rated power: 50 W more power. 12 of 19 comparable parameters are identical.

See all 7 differences
How alike are they
12 of 19 comparable
parameters are identical
identical differs
01

What actually differs

7 of 19 parameters
Parameter SPDG490-N120M10 SPDG440-N108M10 Difference
Rated power 490 Wp 440 Wp 50 W more power
Weight 26.0 kg 23.3 kg 2.7 kg lighter
Open-circuit voltage 43.06 V 38.53 V 4.53 V apart
Module area 2.166 m² 1.953 m² 0.213 m² apart
Cell count 120 108 12 cells apart
Voltage at max power 35.66 V 32.09 V 3.57 V apart
Dimensions 1910x1134x35 mm 1722x1134x30 mm 1910x1134x35 mm vs 1722x1134x30 mm
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPDG490-N120M10
16,440 kWh
SPDG440-N108M10
14,763 kWh
Lifetime gap
1,677 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SPDG490-N120M10 SPDG440-N108M10
Standard test conditions 25 °C 100.0% of rated power 490 W 440 W
Cool, bright day 40 °C 95.5% of rated power 468 W 420 W
Typical summer roof 55 °C 91.0% of rated power 446 W 400 W
Hot roof 70 °C 86.5% of rated power 424 W 381 W
03

Full specification

Parameter SPDG490-N120M10 SPDG440-N108M10 Difference
Power and efficiency
Rated power 490 Wp 440 Wp +50 W for SPDG490-N120M10
Module efficiency 22.62 % 22.53 % Effectively the same
Power density 226.2 Wp/m² 225.3 Wp/m² Effectively the same
Open-circuit voltage 43.06 V 38.53 V 4.53 V apart
Voltage at max power 35.66 V 32.09 V 3.57 V apart
Short-circuit current 14.47 A 14.43 A Effectively the same
Current at max power 13.75 A 13.72 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1910x1134x35 mm 1722x1134x30 mm 1910x1134x35 mm vs 1722x1134x30 mm
Module area 2.166 m² 1.953 m² 0.213 m² apart
Weight 26.0 kg 23.3 kg -2.7 kg for SPDG440-N108M10
Weight per kWp 53.1 kg/kWp 53.0 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 108 12 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#3,693 vs #4,041
SPDG490-N120M10 leads by 348 places
Power density
#3,731 vs #4,158
SPDG490-N120M10 leads by 427 places
Heat behaviour
#6,152 vs #6,152
Tied - the same position in the database
Weight
#6,877 vs #6,737
SPDG440-N108M10 leads by 140 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,780 vs #6,586
SPDG490-N120M10 leads by 1,806 places
05

More useful comparisons

Open the full database
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG600-N144M10
10 differences, the largest is rated power
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG595-N144M10
10 differences, the largest is rated power
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG590-N144M10
9 differences, the largest is rated power
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG585-N144M10
7 differences, the largest is rated power
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG500-N120M10
4 differences, the largest is module efficiency
Same series, other bin
Sunpro Power
Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG495-N120M10
2 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Sunpro Power SPDG490-N120M10 or Sunpro Power SPDG440-N108M10?
According to our database: Sunpro Power SPDG490-N120M10 has higher module efficiency (22.62% vs 22.53%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunpro Power SPDG490-N120M10 and Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG490-N120M10 has a module efficiency of 22.62%, while Sunpro Power SPDG440-N108M10 is 22.53%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunpro Power SPDG490-N120M10 use vs Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG490-N120M10 uses TOPCon cells; Sunpro Power SPDG440-N108M10 uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Sunpro Power SPDG490-N120M10 and Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG490-N120M10 has a 30 years power warranty; Sunpro Power SPDG440-N108M10 has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.

Shop prices: See 12 Sunpro Power offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.